2023 NFPA 122 Standard - Current Edition
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  • Description

    Access the latest requirements for minimizing fire risks and safeguarding personnel in mines and metal mineral processing facilities.

    NFPA® 122, Standard for Fire Prevention and Control in Metal/Nonmetal Mining and Metal Mineral Processing Facilities, addresses the protection of diesel-powered equipment and storage and handling of flammable and combustible liquids at these specialized sites. The updated 2023 edition reflects the most current industry knowledge and practices.

    Important changes include:

    • Addition of a new Chapter 14, Conveyors, which includes requirements for conveyors to align with NFPA 120, Standard for Fire Prevention and Control in Coal Mines
    • New Chapter 15, Ventilation in Underground Mines, which includes safety requirements for ventilation to reduce combustible gas concentrations and align with NFPA 120
    • Added Chapter 16, Emergency Preparedness and Response, which includes requirements for emergency preparedness and response plans
    • Revisions made to reorganize and update the requirements in Chapter 13, including new annex material added to strengthen fire protection guidance that relies heavily on risk assessments
    • Changes throughout the document to the terms flammable and combustible liquid to align with the ignitible (flammable and combustible) liquid terminology updated in NFPA 30, Flammable and Combustible Liquids Code
  • Table of Contents (2023 Current Edition)

    NFPA® 122 Standard for Fire Prevention and Control in Metal/Nonmetal Mining and Metal Mineral Processing Facilities, 2023 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Retroactivity.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 General
    4.1 General.
    4.2 Housekeeping.
    4.3 Ignition Source Control.
    4.4 Hot Work.
    4.5 Maintenance.
    4.6 Fire Protection Equipment Inspection, Maintenance, and Testing.
    4.7 Training.
    4.8 Ignitible (Flammable and Combustible) Liquid Handling and Storage.
    4.9 Vehicle Refueling.
    4.10 Noncombustible Material.
    Chapter 5 Fire Risk Assessment and Risk Reduction
    5.1 Fire Risk Assessment.
    5.2 Risk Reduction.
    Chapter 6 Fire Detection and Suppression Equipment
    6.1 Portable Fire Extinguishers.
    6.2 Hand Hose Line Systems.
    6.3 Fire Detection.
    6.4 Fire Suppression Equipment.
    Chapter 7 Fire Protection for Diesel-Powered Equipment in Underground Mines
    7.1 Equipment Modification.
    7.2 Equipment Inspection and Maintenance.
    7.3 Portable Fire Extinguishers.
    7.4 Fixed Suppression Systems.
    Chapter 8 Transfer of Ignitible (Flammable or Combustible) Liquids in Underground Mines
    8.1 Fire Risk Assessment.
    8.2 Proximity of Surface Ignitible (Flammable and Combustible) Liquid Storage to Underground Openings.
    8.3 Surface-to-Underground Transfer.
    8.4 Underground Transfer.
    Chapter 9 Flammable Liquid Storage in Underground Mines
    9.1 General.
    9.2 Flammable Liquid Containers.
    9.3 Small Flammable Liquid Storage Areas.
    9.4 Large Flammable Liquid Storage Areas.
    9.5 Dispensing Flammable Liquids.
    Chapter 10 Combustible Liquid Storage in Underground Mines
    10.1 General.
    10.2 Combustible Liquid Containers and Tanks.
    10.3 Atmospheric Tanks.
    10.4 Low-Pressure Tanks.
    10.5 Pressure Vessels.
    10.6 Venting Atmospheric and Low-Pressure Combustible Liquid Storage Tanks.
    10.7 Additional Considerations.
    10.8 Small Combustible Liquid Storage Areas.
    10.9 Large Combustible Liquid Storage Areas.
    10.10 Dispensing Combustible Liquids.
    Chapter 11 Fire Suppression for Ignitible (Flammable or Combustible) Liquid Storage Areas in Underground Mines
    11.1 Portable Fire Extinguishers.
    11.2 Hand Hose Line Systems.
    11.3 Fire Suppression Systems.
    Chapter 12 Fire Prevention and Fire Protection of Surface Mining Equipment
    12.1 General.
    12.2 Fire Prevention.
    12.3 Fire Protection.
    Chapter 13 Fire Protection of Surface Metal Mineral Processing Plants
    13.1 General.
    13.2 Emergency Response and Manual Firefighting.
    13.3 Construction.
    13.4 Lightning Protection.
    13.5 Egress and Exiting.
    13.6 Yard Hydrant Systems.
    13.7 Water Supply and Water Distribution Systems.
    13.8 Ignitible (Flammable and Combustible) Liquids.
    13.9 Compressed Gases.
    13.10 Oxidizers.
    13.11 Belt Conveyors.
    13.12 Rubber- and Plastic-Lined Equipment.
    13.13 Plastic Equipment (Other than Spirals).
    13.14 Gravimetric Ore Concentration Plants Using Combustible Spiral Concentrators.
    13.15 Hydraulic Fluids and Lubricating Oil Systems.
    13.16 Thermal Oil Heating Systems.
    13.17 Fuel-Fired Equipment.
    13.18 Electrical and Control Equipment Spaces.
    13.19 Battery Charging Installations.
    13.20 Hydro-Metallurgical Solvent Extraction (SX) Facilities.
    13.21 New Solvent Extraction (SX) Facilities.
    Chapter 14 Conveyors
    14.1 General Requirements.
    14.2 Underground Conveyors.
    14.3 Overland Conveyors.
    14.4 Belowgrade Reclaim Conveyors.
    14.5 Manual Firefighting.
    14.6 Automatic Fire Suppression Systems at the Belt Drive.
    Chapter 15 Ventilation in Underground Mines
    15.1 Ventilation Plan.
    15.2 Mine Fans.
    15.3 Oxygen-Deficiency Testing.
    15.4 Ventilation Doors.
    15.5 Unventilated Areas.
    15.6 Shaft Mines.
    15.7 Underground Shops.
    15.8 Air Courses and Trolley Haulage Systems.
    15.9 Belt Air Course Ventilation.
    15.10 Gas Drainage for Reduction of Combustible Gases Before Mining. (Reserved)
    15.11 Refrigeration Systems. (Reserved)
    Chapter 16 Emergency Preparedness and Response
    16.1 Emergency Preparedness and Response Plan.
    16.2 Emergency Communications.
    16.3 Underground Operations.
    16.4 Plan Review and Validation.
    Annex A Explanatory Material
    Annex B Fire Risk Assessment
    Annex C Informational References
  • Prior Editions

    2020 Edition

    Help Protect Your Personnel in Underground and Surface Mining and Metal Mineral Processing Plants.

    Both your personnel and equipment face significant fire and explosion dangers during mining and mineral processing operations. Stay up to date with the 2020 edition of NFPA 122, Standard for Fire Prevention and Control in Metal/Nonmetal Mining and Metal Mineral Processing Facilities, to help protect your personnel, equipment, and buildings in mining facilities.

    The standard addresses how to defend your diesel-powered equipment, help protect your personnel, and safely store and handle flammable and combustible liquids at these specialized sites. The 2020 edition reflects several changes, including:

    • New fire safety material added to Chapter 13
    • Added guidance on fire suppression and welding and cutting operations near combustible concentrators


    2015 Edition

    Protect facility personnel in mines and reduce fire loss risks through prompt compliance with the 2015 NFPA 122.

    Mining and mineral processing facilities represent significant fire and explosion exposures to both personnel and production equipment and buildings. Critical to safety, the 2015 NFPA 122, Standard for Fire Prevention and Control in Metal/Nonmetal Mining and Metal Mineral Processing Facilities addresses the protection of diesel-powered equipment and storage and handling of flammable and combustible liquids at these specialized sites.

    New in the 2015 NFPA 122.

    • Changes align requirements with the 2015 edition of NFPA 120, Standard for Fire Prevention and Control in Coal Mines.
    • Added materials on pre-engineered fire suppression systems include requirements for inspection and maintenance.

    Stay up-to-code. Be confident your designs, installations, and facilities are protected and in compliance.

    Mitigate hazards with the field's best practices in the latest NFPA 122. (Print, 42 pp., 2015)


    Interested in other editions of NFPA 122? Use the drop down menu above to select the edition year you need.

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